I defend the view that strong psychophysical superveniences is necessary and sufficient to explain the causal efficacy of mental properties. I employ factual and counterfactual conditionals as defeasible criteria of causal efficacy. And I also deal with certain problems arising from disjunctive and conjunctive properties.

The mind-body problem arises because of our status as double agents apparently en rapport both with the mental and with the physical. We think, desire, decide, plan, suffer passions, fall into moods, are subject to sensory experiences, ostensibly perceive, intend, reason, make believe, and so on. We also move, have a certain geographical position, a certain height and weight, and we are sometimes hit or cut or burned. In other words, human beings have both minds and bodies. What is the (...) relation between these? Religion often tells us that we are really embodied souls released at death from our bodily prisons. Could this be right? (shrink)

In this paper I present an analysis of causal relevance for properties. I believe that most of us are already familiar with the notion of a causally relevant property. But some of us may not recognize it "under that description." So I begin below with some intuitive explanations and some illustrative examples.